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Finding the Fourth Proportional to 239,378.64, 330,342.54 and 131,951.01

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Solution

The fourth proportional to 239,378.64, 330,342.54 and 131,951.01 is: 182,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,378.64 : 330,342.54 = 131,951.01 : x
  2. Step 2: Convert to fraction form
    239,378.64/330,342.54 = 131,951.01/x
  3. Step 3: Cross multiply
    239,378.64x = 330,342.54 × 131,951.01
  4. Step 4: Simplify right side
    239,378.64x = 43,589,031,798.97
  5. Step 5: Solve for x
    x = 43,589,031,798.97/239,378.64
  6. Step 6: Final answer
    x = 182,092.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.